Shut-off device



Nov. 5, 1929. J. c. CARNER 1,734,074

SHUT-OFF DEVICE FiledJune so, 192e a j I [lll 3 W ZQ'/ 4 l" 1 f H v 30 M1 5 :l ii /4 9 30 l 1 i Lf. l 5 Z r Il? Hl d Ill/"HI i www IW' Q 7 H f gmc/Wto@ Patented Nov. 1929 JEFFERSON C. CARNEB, OF MARIETTA, OHIn SHUT-OFF DEVICE Application led June 30,

This invention aims to provide a simple cut olf device or valve so constructed that it will require no packing of any kind to prevent leakage, novel means being supplied for 1ubricating the rotary member. y

It is within the province of the disclosure to improve, generally and to enhance the utility of devices of that type to which the invention appertains.

lVith the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawing Figure 1 shows in vertical longitudinal section, a device constructed in accordance with -the invention; and

Figure 2 is a horizontal longitudinal tion of the structure shown in Figure 1.

The device forming the subject matter of this application preferably is made of metal throughout and includes a body 1 provided with oppositely disposed nipple 2. The body 1 is supplied at one extremity with an end wall 3 in which there is a reduced opening 4. The body 1 has a tapered bore 5, and there are elongated openings 6 in the body, the openings communicating with the bore 5 and with the nipples 2, the openings 6 being flared as shown at 7 in Figure 2, Where they communieate'with the ni ples 2.

A tapered sleeve 8 1s engaged tightly in the tapered bore 5 of the body 1.v The sleeve 8 has a tapered bore 9. The bore 9 is tapered in one direction, and the bore 5 is tapered in the opposite direction. The sleeve 8 is supplied with oppositely disposed openings 30 which register with the openings 6 in the body 1. In the lower or Wider end of the Sleeve 8 there is a reduced opening 10 which communirates/withy the lower end of the bore 9.

A tapered valve 11 fits tightly but for rotation in thebore 9 of the sleeve 8 and has a stem l2 whereby the valve may be rotated, the

SEC-

1928. Serial No. 289,458.

shown) is placed before the device is assembled. ,The lubricant will last for a long time and facilitates the rotation of the valve 11 .in the sleeve 8. The valve 11 has an elongated transverse port 14 adapted to be brought into and out of registration with the openings 30 of the sleeve 8 when the valve l1is rotated by means of the stem 12.

A pressure member 15 is threaded into the lower end of the body 1 and is supplied at its lower end with a wrenchhead16,bywhichthe pressure member may be rotated conveniently. The pressure member 15 has an axial opening 17 alined with the opening 10 in the lower end of the sleeve 8. There is a depression l 18 in the inner end of the pressure member 15, 70

and this depression forms a rim which bears against the lower end of the sleeve 8 at the outer edge of the sleeve and secures an even advance of the sleeve when the pressure member 15 isturned into the body 1, as and for 75 a purpose which will be set forth hereinafter. A closure plug 19 is threaded into the lower end o f the opening 17 in the member 15. As shown at 21, theredis a slight space between the upper end of the sleeve 8 and the end wall 3, so

and there is a slight space between the lower end of the valve 11 and the bottom of the bore 9 of the sleeve 8. rl`his is to permit a take-up or adjustment when the pressure member 15 is advanced.

The pressure member 15 may be rotated by means of the'wrench head 16, and when the pressure member 15 is advanced, it will shove .the sleeve 8 upwardly and engage the sleeve tightly in the bore 5. The upper end of the valve 11 bears against the end wall 3 of the body 1, and when the sleeve 8 is shoved upwardly, as aforesaid, the valve 11 will be engaged the more tightly in the bore 9 of the sleeve 8. The construction of the device is cumulate in the opening or passage 17, from 100.

which it may be drawn off by removing the plug 19. v

What is claimed In a-device of the class described, a body having an inte al end wall and provided with a tapered re, the smaller end of the bore bein at the end wall, a ta ered sleeve engagedtlghtly in the bore of t e body and having a bore which tapers oppositely to the bore of the sleeve, a tapered valve engaged tightly but rotatably in the bore of the sleeve and having an operating stem extended outwardly through the integral en d Wall of the body, a pressure member threaded into the body, the pressure member being disposed opposite to the aforesaid end Wall and engaging one end of the sleeve, the pressure member and the sleeve having cooperating `drainage passages, and a closure for the drainage passage of the pressure member.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature.

JEFFERSON C. CARNER. 

